>Zuckerberg in particular has minimal capacity to communicate the way human beings naturally do. The Facebook CEO was obviously instructed by a team of public speaking consultants that it is customary to address members of the Committee as “Congressman” or “Congresswoman.” ... For every question directed to him, he paused for several seconds, had his internal algorithms search for the relevant place in the metaphorical cassette inserted in a hidden box in his back, uttered the word “Congressman” or “Congresswoman,” stopped for several more seconds to search for the next applicable spot in the spine-cassette, and then proceeded unblinkingly to recite the words slowly transmitted into his neurons.
Anyone even superficially prepared by a lawyer for a deposition (and testifying before Congress may be the most serious deposition possible) is instructed to lengthen all responses to just before the line of "obstructing the questioning."
In this game of modern "congressional investigation," where congresspeople are incentivized to advertise their agenda as opposed to acquire new information (investigate), it is in the best interest of the testifier, as in most depositions, to say as little as possible.
Who knows what Zuckerberg is really like personality-wise. It is likely that how he is in front of Congress is not how he is in a relaxed setting. This fact doesn't generate the clicks that calling him a robot does though...